Hi Tristan, thank you for your help. Now I have got on the fly switch
locale hack for menu items too. Below example code how it was done.
#include <stdlib.h>
#include <glib.h>
#include <gtk/gtk.h>
#include <glib/gi18n.h>
#define RU_PACKAGE (gchar*) "messages"
#define EN_PACKAGE (gchar*) "en_messages"
#define LOCALEDIR (gchar*) "locale"
//
-----------------------------------------------------------------------------
void use_ru()
{
putenv("LANG=RU");
bindtextdomain (RU_PACKAGE, LOCALEDIR);
bind_textdomain_codeset (RU_PACKAGE, "UTF-8");
textdomain (RU_PACKAGE);
}
//
-----------------------------------------------------------------------------
void use_en()
{
putenv("LANG=EN");
bindtextdomain (EN_PACKAGE, LOCALEDIR);
bind_textdomain_codeset (EN_PACKAGE, "UTF-8");
textdomain (EN_PACKAGE);
}
const gchar* msg_id="msg_id";
//
-----------------------------------------------------------------------------
void translate_item(GtkWidget* w)
{
if (!w) return;
GObject *o = G_OBJECT(w);
if (!G_IS_OBJECT(o)) return;
guint type_id = G_OBJECT_TYPE(o);
const gchar* label="label";
GParamSpec* ps = g_object_class_find_property(G_OBJECT_GET_CLASS(o),
label);
if (!ps) return;
gchar *id;
id =(gchar*) g_object_get_data(o, msg_id);
if (!id)
{
gchar *c;
// Get copy of property.
g_object_get(o, label, &c, NULL);
// Create data field containing msg_id value.
g_object_set_data_full(G_OBJECT(w), msg_id, c, g_free);
id =(gchar*) g_object_get_data(o, msg_id);
}
gint len = strlen(id);
if(len > 0)
{
// Get and set translated value.
const gchar* txt = gettext(id);
if(txt)
{
g_object_set(o, label, txt, NULL);
}
}
}
//
-----------------------------------------------------------------------------
void translate_widget(GtkWidget *w, gpointer dummy)
{
if(GTK_IS_MENU_ITEM(w))
{
GtkWidget *submenu = gtk_menu_item_get_submenu(GTK_MENU_ITEM(w));
if (submenu) gtk_container_foreach(GTK_CONTAINER(submenu),
translate_widget, 0);
}
if (GTK_IS_CONTAINER(w))
{
gtk_container_foreach(GTK_CONTAINER(w), translate_widget, 0);
return;
}
if (w)
{
translate_item(w);
}
}
//
-----------------------------------------------------------------------------
GtkBuilder* read_ui(char *file) // load user interface from file
{
GError *error = NULL;
gchar *nm;
int ok=0;
nm = g_filename_from_utf8( file, -1,NULL,NULL,NULL);
GtkBuilder* ui = gtk_builder_new ();
const gchar* a = gtk_builder_get_translation_domain(ui);
ok = gtk_builder_add_from_file( ui, nm , &error);
return ui;
}
//
-----------------------------------------------------------------------------
void on_window_destroy (GtkWidget *widget, gpointer user_data)
{
gtk_main_quit ();
/* quit main loop when windows closes */
}
//
-----------------------------------------------------------------------------
void swap_translation(void)
{
char *c = getenv("LANG");
if (c)
{
if (strcmp(c, "EN")==0) use_ru(); else use_en();
}
else
{
use_ru();
}
}
//
-----------------------------------------------------------------------------
void translate_button_label (GtkWidget *w, gpointer user_data)
{
GtkWidget *widget = GTK_WIDGET(user_data);
/* get button widget */
swap_translation();
translate_item(widget);
}
//
-----------------------------------------------------------------------------
void translate_frame (GtkWidget *w, gpointer user_data)
{
GtkWidget *widget = GTK_WIDGET(user_data);
/* get_frame_widget */
swap_translation();
translate_widget(widget, NULL);
}
//
-----------------------------------------------------------------------------
void translate_menu (GtkWidget *w, gpointer user_data)
{
GtkWidget *widget = GTK_WIDGET(user_data);
/* get menu widget*/
swap_translation();
translate_widget(widget, NULL);
}
//
-----------------------------------------------------------------------------
int main (int argc, char *argv[])
{
GtkWidget *window, *translate_button,
*translate_frame_button, *translate_menu_button;
gtk_init (&argc,&argv);
/* initialize GTK+ */
GtkBuilder* ui = read_ui( "ui/translation_check_ui.glade");
GtkWidget* device = GTK_WIDGET (gtk_builder_get_object( ui,
"device_apd_hbox"));
GtkButton* apply_button = GTK_BUTTON (gtk_builder_get_object( ui,
"apply_button" ));
GtkFrame* frame = GTK_FRAME(gtk_builder_get_object( ui,
"device_apd_frame" ));
ui = read_ui((gchar*) "ui/menu_bar_ui.glade");
GtkWidget* menu = GTK_WIDGET (gtk_builder_get_object( ui,
"menubar1"));
g_assert(menu);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
/* create the main window */
GtkWidget* box = gtk_box_new(GTK_ORIENTATION_VERTICAL, 7);
/*Create container for all staff*/
//Create button1
translate_button = gtk_button_new();
gtk_button_set_label(GTK_BUTTON(translate_button), "Translate
<Apply button>");
//Create button2
translate_frame_button = gtk_button_new();
gtk_button_set_label(GTK_BUTTON(translate_frame_button),
"Translate <Frame>");
//Create button3
translate_menu_button = gtk_button_new();
gtk_button_set_label(GTK_BUTTON(translate_menu_button ),
"Translate <menu>");
gtk_box_pack_start(GTK_BOX(box), menu,true,true,5);
gtk_box_pack_start(GTK_BOX(box), device,true,true,5);
gtk_box_pack_start(GTK_BOX(box), translate_button,true,true,5);
gtk_box_pack_start(GTK_BOX(box),
translate_frame_button,true,true,5);
gtk_box_pack_start(GTK_BOX(box),
translate_menu_button,true,true,5);
gtk_container_add (GTK_CONTAINER (window), box);
/*add children*/
translate_widget(window, NULL);
gtk_widget_show_all (window);
/* display window and children */
g_signal_connect (window, "destroy",
G_CALLBACK(on_window_destroy), NULL);
/* connect the window closing event with the "on_window_destroy"
function */
g_signal_connect (translate_button, "clicked",
G_CALLBACK(translate_button_label), apply_button);
/* connect the button event with the "translate" function */
g_signal_connect (translate_frame_button, "clicked",
G_CALLBACK(translate_frame), frame);
/* connect the button event with the "translate" function */
g_signal_connect (translate_menu_button, "clicked",
G_CALLBACK(translate_menu), menu);
/* connect the button event with the "translate" function */
gtk_main ();
/* MAIN LOOP */
return 0;
}
Best regards,
Igor
2017-07-17 14:35 GMT+03:00 Tristan Van Berkom <
tristan.vanber...@codethink.co.uk>:
> On Mon, 2017-07-17 at 12:32 +0300, Igor Chetverovod wrote:
> > Hi all, I have a need to switch locale on the fly (without an
> > application
> > UI reload).
> > I have a function which are using gkt_container_forall() for
> > marking of
> > all widgets are having GObject property "label" , all of them get
> > aditional GObject field "msg_id" with original english text of
> > property
> > "label"). When user press the button "Change locale" function
> > iterates
> > through all children of the main window and reads thier marks
> > "msg_id"
> > added before and uses them as a parameter for get_text() to
> > get translated
> > version of the label. And it sets localized text of every label by
> > function g_object_set(). Function works good for all widgets in my
> > application. But there is exclusion - GtkMenuItems widgets. Function
> > gkt_container_forall() iterates trough them only once - at the
> > "marking"
> > phase. In "change locale" phase it does not iterate them. It
> > translates
> > only top level of GtkMenuBar, but does not GtkMenuItems and
> > GtkCheckMenuItems.
> >
> > Fuction gtk_container_foreach () givese the same results.
> >
> > Is there method to solve this issue by gtk-functions?
> >
> > I am using gtk3.22.1 for Windows7.
>
> Hi Igor,
>
> Translating the UI on the fly is something I have wanted for many
> years, and would be awesome to have real support for :)
>
> That said, using your current 'hack' (which seems a bit dangerous as it
> makes assumptions about "label" properties on widgets and their
> meaning), you are just missing some special cases to traverse through
> the UI.
>
> For this case, you can probably get away with somthing like the
> following inserted into your recursive widget crawling loop:
>
> if (GTK_IS_MENU_ITEM(widget))
> child = gtk_menu_item_get_submenu(GTK_MENU_ITEM(widget))
>
> https://developer.gnome.org/gtk3/stable/GtkMenuItem.html#
> gtk-menu-item-get-submenu
>
>
> Cheers,
> -Tristan
>
>
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
Без
вирусов. www.avast.ru
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
_______________________________________________
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
